Strict security

A civic function in South Wales was attended by many important London politicians.

A policeman guarding the door had strict instructions to exclude all interlopers. The first person to arrive was a member of the present government.

"You can't go in there without an authorisation" said the policeman, blocking the door against the great person.

"But I'm a Cabinet Minister", spluttered the excluded one.

"I don't care," said the policeman. "I can't let you in Baptist, Methodist, whatever kind of minister you are."